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# What is image alignment error

### Alignment Errors & Misalignments - Help Cente

Alignment Errors An alignment error is when the Matterport Capture app cannot align the current scan to your previous scans. In this case, Matterport Capture will immediately tell you something is wrong. To recover from an alignment error, reduce the distance from a previously completed scan by half and try again Computer Vision: Image Alignment Raquel Urtasun TTI Chicago Jan 24, 2013 Raquel Urtasun (TTI-C) Computer Vision Jan 24, 2013 1 / 44. Readings Chapter 2.1, 3.6, 4.3 and 6.1 of Szeliski's book Chapter 1 of Forsyth & Ponce Raquel Urtasun (TTI-C) Computer Vision Jan 24, 2013 2 / 44 In a typical image alignment problem we have two images of a scene, and they are related by a motion model. Different image alignment algorithms aim to estimate the parameters of these motion models using different tricks and assumptions. Once these parameters are known, warping one image so that it aligns with the other is straight forward ALIGN=absbottom does what bottom should have done which is align the bottom of the image with the bottom of the current line. The rendering produced by Netscape 2.0b3 is sensitive to what has occurred on the current text line prior to the current IMG element which includes the align attribute Image alignment (also called image registration) is the technique of warping one image ( or sometimes both images ) so that the features in the two images line up perfectly. Creating panoramas. In document processing applications, a good first step would be to align the scanned or photographed document to a template

For an image alignment system, another key point is the recognition of the mark. If the recognition of the mark is insufficient, there may be a misrecognition that influences the alignment quality, and the common mark is cross mark Learn what to do if you get an 'alignment failed' error message. The printer shown is the HP Officejet Pro 8500 Premier All-in-One Printer - A909n. The same.

Automatic Print Head Alignment If printed ruled lines are misaligned or print results are otherwise unsatisfactory, adjust the print head position. Reference: If the remaining ink level is low, the print head alignment sheet will not be printed correctly. Replace the ink tank whose ink is low Image registration is the process of transforming different sets of data into one coordinate system. Data may be multiple photographs, data from different sensors, times, depths, or viewpoints. It is used in computer vision, medical imaging, military automatic target recognition, and compiling and analyzing images and data from satellites.Registration is necessary in order to be able to.

• Image alignment is the process of matching one image called template (let's denote it as T) with another image, I (see the above figure). There are many applications for image alignment, such as tracking objects on video, motion analysis, and many other tasks of computer vision
• It is used to specify the alignment of the image according to surrounding elements. It is not supported by HTML 5. HTML 5 uses CSS property instead of this attribute
• Intuitively, one might expect alignment error to result mainly in an increased number of false positives, as the spurious alignment of nonhomologous codons on average would result in a high number of apparent nonsynonymous substitutions and a low number of synonymous substitutions (since two randomly chosen codons are more likely to be nonsynonymous than synonymous)

Image stitching or photo stitching is the process of combining multiple photographic images with overlapping fields of view to produce a segmented panorama or high-resolution image. Commonly performed through the use of computer software, most approaches to image stitching require nearly exact overlaps between images and identical exposures to produce seamless results, although some stitching. If the image is taken of an area further from the pole than this then plate solving will fail. If you have a network connection, you can check how far you are from the pole by saving a frame (press the 'Snapshot' button) and uploading it to nova.astrometry.net for plate solving When you're done with a print, if the print is more than ¼ from where you put it, you may have an alignment problem. Most alignment problems come from the material being closer or farther from the camera than expected. However, if you have moved your Glowforge, the camera may be improved with calibration Y ou can align images according to the text around it, using the following alignments:. default aligns the image using the default settings of the Web browser. Same as baseline. left aligns the image in the left margin and wraps the text that follows the image.; right aligns the image in the right margin and wraps the text that precedes the image.; top aligns the top of the image with the. Align the vertical and horizontal lines with the scales at the top and side of the document table. The image is distorted or blurred Try one or more of the following solutions. Images cannot be located properly in the Thumbnail preview Try one or more of the following solutions

Mostly these errors happen due to parallax and lens distortion (especially with wide-angle lenses which stretch the corners of the image). That does not mean errors can not be avoided or masked with proper shooting and merging technique, of course. To learn more about panoramas, read our dedicated tutorial Ultrasound (US) image guidance systems used in radiotherapy are typically calibrated for soft tissue applications, thus introducing errors in depth-from-transducer representation when used in media with a different speed of sound propagation (e.g. fat). This error is commonly referred to as the speed artifact Contact: Timothy P. Walker AMCC USA Tel: 1-978-247-8407 Fax: Email: twalker@amcc.com Optical Transport Network (OTN) Tutorial Disclaimer: This is a Tutorial. This is NOT a Recommendation

Common Optical Defects in Lens Systems (Aberrations) Microscopes and other optical instruments are commonly plagued by lens errors that distort the image by a variety of mechanisms associated with defects (commonly referred to as aberrations) resulting from the spherical geometry of lens surfaces The idea is the following: Frame a star with your camera LCD screen. Use the composition guidelines and place the star at the crossing of two lines, to have a precise reference for its position on screen. Note its DEC (DEC1) and RA (RA1) reading them from software such as Stellarium or Sky Guide Ultrasound (US) image guidance systems used in radiotherapy are typically calibrated for soft tissue applications, thus introducing errors in depth-from-transducer representation when used in media with a different speed of sound propagation (e.g. fat) If labels are printing horizontally offset, try the solutions in this article: Labels are printing horizontally offset (left to right). The image is printing too far to the left or right. The LX series printer decides where to start printing by detecting the start of the die-cut label, detecting a black mark on the back, or detecting a thru-hole that corresponds to the start of the label Mariana Hernandez I am trying to align two images. I am trying to align two images in two divs. These are the two images, they are the same size, resolution, and the aligning is perfect when doing it in photoshop

The image is printed up-side-down if you are looking at it as it prints, but from the printer's perspective, it is printing right-side-up, etc. Left Margin Offset. This adjustment is found in the printer preferences area of the printer driver Measuring Polar Axis Alignment Error. by Frank Barrett. 3 rd Edition 9/21/2016. Abstract: One of the most popular methods for polar alignment is the drift alignment.

### Image Alignment (ECC) in OpenCV ( C++ / Python ) Learn

• imization process of matching two images, template T and another image I. During the last 20 years, an image alignment technique proposed by Lucas and Kanade in 1981 has been widely used in computer vision. This technique uses image intensity gradient information to iteratively search for the best match.
• 5.7] What is a CRC/Alignment error? (Ethernet Errors and Troubleshooting) When a station sends a frame, it appends a Cyclical Redundancy. Check to the end of the frame. This CRC has been generated from an. algorithm and is based on the data in the frame. If the frame is. altered between the source and destination, the receiving station
• The Simple Image Quality Adjustment (SIQA) software is used to perform the Auto Alignment Adjustment and Density Uniformity Adjustment procedures. Important Without the installation of the SIQA software, the aforementioned procedures cannot be performed. The SIQA software installation process consists of the following: 1
• Any image, link, or discussion of nudity. Any behavior that is insulting, rude, vulgar, desecrating, or showing disrespect. Any behavior that appears to violate End user license agreements, including providing product keys or links to pirated software. Unsolicited bulk mail or bulk advertising
• Joined: 21 May 2011. Posted 03 June 2017 - 02:37 PM. I've found that AutoStakkert! doesn't handle large alignment offsets very well. If there was a lot of movement between frames or if the moon moved a significant distance within the frame during the capture sequence then it may fail. However, make certain that you are using the correct.

### OBJECT and the IMG ALIGN value

1. Y ou can align images according to the text around it, using the following alignments:. default aligns the image using the default settings of the Web browser. Same as baseline. left aligns the image in the left margin and wraps the text that follows the image.; right aligns the image in the right margin and wraps the text that precedes the image.; top aligns the top of the image with the.
2. Dragging a photo on a page in a book can bring in alignment guides from objects on the opposite page. And rotated objects also show alignment guides, as shown below. The top line in the screen shows that the upper corner of the image on the left page is aligned with the upper left corner of the selected photo on the opposite page
3. I've encountered the need for GL_UNPACK_ALIGNMENT with stb_image a few times. stb_image documentation indicates that it does not try to perform any kind of alignment - and most certainly that becomes clear when handing OpengGL an NPOT (non-power-of-two) texture without said alignment

Aligning the print headLoad paper and open the output tray extension.Open Canon IJ Printer Assistant Tool.Print the print head alignment pattern.Check the pr.. To align multiple layers, select the layers with the Move tool or in the Layers panel, or select a group. To align the content of one or more layers to a selection border, make a selection in the image, and then select the layers in the Layers panel. Use this method to align to any specified point in the image

Get down on the ground or remove your tire to inspect the tread. If a tire is angled inwards, it is toe in and the inner portion of the wheel will look worn down compared to the rest of the tire. If the tire points away from the vehicle, it is toe out.. Both of these issues are resolved on an alignment rack AutoStakkert! (AS!3, AS!2) is lucky imaging software used to automatically analyze, align, and stack images of the Sun, Moon and Planets that were taken through a telescope. Using a fast video camera, noisy and slightly distorted images are obtained, that can be combined into a single high quality image using this software. AutoStakkert! is free software, easy to use, very fast, and generally. 5.3) Align and Blend Image Layers Assuming none of the above two solutions are suitable, you will likely have to do some old fashioned layer blending yourself. But if you are working with Lightroom and using Photoshop as an External Editor, there is a problem, or at least it may seem so at first

### Feature Based Image Alignment using OpenCV (C++/Python

• Image Alignment in WordPress Editor. Previously, WordPress used a text area with editing buttons as its default editor. One particular issue in the old editor was image alignment. Even though there were options to align images left, right, or center, they didn't always look good
• Purpose: To evaluate temporal changes and predictors of accuracy in the alignment between simultaneous near-infrared image and optical coherence tomography (OCT) scan on the Heidelberg Spectralis using a model eye. Design: Laboratory investigation. Methods: After calibrating the device, 6 sites performed weekly testing of the alignment for 12 weeks using a model eye
• Align the bottom of the image to the same level that the bottom of a subscript would be, such as the bottom of the 2 in X 2 . super: Align the bottom of the image to the same level that the bottom of a superscript would be, such as the bottom of the 2 in X 2 . text-top: Align the top of the image to the top of the text
• A. Appear along the entire axis of the image and on select imaging plates B. Appear along the entire axis of the image and on every imaging plate C. Don't cross the entire axis of the image or every imaging plate D. Don't cross the entire axis of the image or select imaging plate
• g is achieved when the shooter places In exact alignment the rear sight with the top and.

Simply select the image by clicking on it, and then click on alignment button from the block toolbar. You may have noticed how some popular blogs use images with text wrapped around them. This is done by using the align feature. Alternatively, you can also use the 'Media & Text' block instead of the image block On the Alignment Tab window, select Center then click OK. Type some more text (e.g. 'center align'). Look what happens — the text you just typed automatically goes to the center position in the header! At the end of the text you just typed, click Insert Alignment Tab again. On the Alignment Tab window, select Right then click OK The vertical-align property can be used in two contexts: To vertically align an inline element's box inside its containing line box. For example, it could be used to vertically position an image in a line of text.; To vertically align the content of a cell in a table.; Note that vertical-align only applies to inline, inline-block and table-cell elements: you can't use it to vertically align. align-content align-items align-self all animation animation-delay animation-direction animation-duration animation-fill-mode animation-iteration-count animation-name animation-play-state animation-timing-function backface-visibility background background-attachment background-blend-mode background-clip background-color background-image.

### Vision Servo Motion Control and Error Analysis of a

• The Align tool is useful to align the image layers with various image objects. When this tool is selected, the mouse pointer turns to a small hand. By clicking on an element of a layer in the image, you choose the layer which will be moved (with Shift + click, you can choose several layers to be aligned); this focused layer has small squares in.
• Print Head Alignment. Open the printer driver setup window. Click Print Head Alignment on the Maintenance tab. The Start Print Head Alignment dialog box opens. Load paper in the printer. Load one sheet of A4 size or Letter size plain paper into the cassette. Note. The number of sheets to be used differs when you select the manual head alignment
• It uses a handy C++17 feature to enable initialisation of scoped enums with the underlying type. That's why you can write: align_val_t myAlignment { 32 }; // no need to cast to size_t! And we have new () operators as below: void* operator new ( std::size_t count, std::align_val_t al); See all of them here @cppreference
• The image above represents a layout for desktops (1024x627). To check how this layout behaves in other devices, move the slider at the top to see the changes in the layout. If you preview the project in different devices, you can see that the Fluid Box containers align themselves intelligently according to the device width
• The first ensures an alignment point is added to the likes of EQMod (this acts like a star alignment, which makes future goto commands more precise). The second ensures the target is physically centred after AstroTortilla plate solves, which is the main idea behind us even using AstroTortilla to begin with
• On the left, we have our template image (i.e., a form from the United States Internal Revenue Service). The middle figure is our input image that we wish to align to the template (thereby allowing us to match fields from the two images together). And finally, the right shows the output of aligning the two images together.. At this point, we can associate text fields in the form with each.

Attachments: Up to 10 attachments (including images) can be used with a maximum of 3.0 MiB each and 30.0 MiB total Image mosaicking actually consists of two phases, image registration and image blending. Image registration has been widely developed in recent decades, which is a very important technique in the applications of remote sensing, medical imaging and image processing

Inaccurate polar alignment To eliminate star drift, the mount must rotate around an axis which is exactly parallell to the earths rotation axis (i.e. the axis between north and south poles). If this is not the case, we will experience drift in both Right Ascension (RA) and Declination (DEC) PHD2 Drift Alignment The drift align tool in PHD2 can be used to quickly obtain a precise polar alignment of your equatorial mount. The process takes a little bit of practice, but after doing it a few times, you should be able to obtain an accurate polar alignment in minutes. Preparation Make sure your mount is reasonably level 5 Tips for Better PHD2 Guiding. PHD2 is a telescope autoguiding software that automates the process of tracking a guide star. This is an important aspect of deep sky astrophotography because it allows you to focus on capturing successful long exposure images and get the most out of your telescope mount.. PHD2 is easy enough for a beginner to use right away, yet also includes sophisticated.

### Canon Knowledge Base - Aligning the Print Head - MG532

1. On three corners of a QR code are square blocks that the reader uses to coarsely identify and then align the code. A correctly rendered code also has a Quiet Region (Ideally, at least four 'pixel' elements wide) all around the edge of the code to help the reader disambiguate between the code and any other background image
2. LUT (lookup table) The higher bit depth in digital imaging, the _____ the number of gray shades. greater. What are the two most common ways of adjusting brightness and/or contrast levels in digital imaging. LUT (lookup table) and windowing. what is the primary factor influencing image contrast in digital imaging
3. A JLabel object can display either text, an image, or both. You can specify where in the label's display area the label's contents are aligned by setting the vertical and horizontal alignment. By default, labels are vertically centered in their display area. Text-only labels are leading edge aligned, by default; image-only labels are.
4. Hugin allows images to be added in any orientation, in any direction. However, you may find it easier to give Hugin a few approximate hints about where each image belongs. You can specify a certain image to be your guidepost, or anchor. The anchor image will not be moved around, but all of the others will be moved to align to it

### Image registration - Wikipedi

Following alignment and centering on the arbor, the process can be continued for the alignment of further lenses. LensAlign 4D LensAlign 4D represents a module for the OptiCentric ® 100 that enables the cementing of a small lens to a mechanical reference axis, such as an arbor or cell Once the mount and scope are set in the conventional EQ Home position, ASIAIR makes Polar Alignment as easy as 1, 2, 3 by platesolving, rotating the mount 60 degrees, and platesolving again. ASIAIR's platesolving is lightning fast, and provides continuous updates guiding your alignment knob adjustments

Returns the alignment of the label's contents along the Y axis. 16: int getVerticalTextPosition() Returns the vertical position of the label's text, relative to its image. 17: boolean imageUpdate(Image img, int infoflags, int x, int y, int w, int h) This is overridden to return false if the current Icon's image is not equal to the passed in. The based images are detailed shots of the facades. I assume the problem is, that PS tried FIRST to do alignment with based detailed images (small or no overlap) and then SECONDLY processing areal images Align the images¶ Aligning is pretty easy. Basically you just need to check a few settings then click on some bright stars in the image and ImageJ does the rest. The details: In your image sequence, click on the align button and read the instructions that pop up. Click on a few stars, right click when done to start the alignment process HP Utility (Mac): Click the option to align the printheads or cartridges. HP Solution Center (Windows XP, Vista): Click Settings, and then click Printer Toolbox. On the Device Services tab, click Align the Print Cartridges to print an alignment page. If prompted on the printer control panel, software, or alignment page, scan the alignment page. Unable to detect alignment marks: Marks printed too close to media edges Image printed too small to get the alignment marks; Print image on media in such a way that there is at least 2-3 white space between the alignment marks and the media edges. Print image no smaller than 10 square to provide enough room for alignment marks

### Image Alignment Algorithms - CodeProjec

1. Then print another alignment sheet when you're done and check it. 8. Press OK when you're done. From the Computer. 1. Load a few sheets of plain paper in the main tray. 2. Windows: Right-click the printer icon in the bottom right corner of your screen (the taskbar) and select Print Head Alignment
2. TL-7S Optical Fusion Splicer is a cost effective high precision instrument specially designed for FTTH network. The splicer average splicing loss 0.02dB(SM) 0.01dB(MM) 0.04dB(DS) 0.04dB(NZDS), PAS fiber core alignment technology, CMOS image sensor imaging technology, Carrying bag also your work platform
3. Centering images is simple with just a couple lines of html and css. How to center a imageHow to properly center a image in HTML and CSScenter imagewebsitece..
4. Click the Utility icon button, then click the Print Head Alignment button. Follow the on-screen instructions to align the print head. [Top] For Mac OS X. Follow the steps below to align the print head using the Print Head Alignment utility. Make sure that A4 or Letter size plain paper is loaded in the sheet feeder
5. This is mainly due to IE6 in quirks mode and below not recognizing the auto value we set to the margin property. Fortunately, this is easily fixed. The Fix. The easiest and most reliable way to center content for IE6 and below is to apply text-align: center to the parent element and then apply text-align: left to the element to be centered to make sure the text within it is aligned properly
6. MSE = immse (lena, image_new); And you should never use size like that with images. Why not? It will give wrong number of columns if the image is RGB, which it can be even if you think it's not, if you saved the image as a JPG file

### HTML <img> align Attribute - GeeksforGeek

I get the wrong results - SharpCap says my Polar Alignment is great after adjustment, but it isn't! The directions that SharpCap says I should move my mount are wrong Sensor Analysi Shaft Alignment. Page . Number What is shaft alignment 6.. A definition 6.. Machine catenary 7.. Operation above critical speed 8 Expressing alignment 10.. Alignment parameters 10.. Angularity, gap and offset 11.. Short flexible couplings 14.. Spacer shafts 15 How precise should alignment be? 1 Alignment is one of those things that comes hand-in-hand when working with grid systems. The subject of alignment isn't simply a matter of choosing whether or not you want to align text or images to the left or right of a design (though those decisions obviously still matter), instead, we employ alignment to improve our designs Partition alignment refers to the physical sector offset of partitions. There are two alignment possibilities used by Windows: Cylinder, Head, Sector (CHS) alignment. This is the alignment used by all Windows versions, up to and including Windows XP/Server 2003. Disks are described as having sectors, heads and cylinders, typically 512 bytes per. Optionally, you could add media queries to make the images stack on top of each other instead of floating next to each other, on a specific screen width. The following example will stack the images vertically on screens that are 500px wide or less

### Effects of Alignment Error and Alignment Filtering on the

A common cause of errors in BLAST is searching with a huge sequence, like a complete chromosome, against a large database like nr. This is better accomplished in portions rather than one large, continuous sequence. 5) Limit the database by taxonomy. Start with large groups, such as mammals, bacteria, etc It helps if you layer the images and align them so that switching the top layer on and off reveals the movement of the tape. The camera was rotated L-R for these shots. It is clear that the entrance pupil moved to the right, for you can see a bit more around the right hand side of the tape, and less on the left hand side Barcode technology is one of the most important parts of Automatic Identification and Data Capture (AIDC). Quick Response code (QR code) is one of the most popular types of two-dimensional barcodes. How to decode various QR code images efficiently and accurately is a challenge. In this paper, we revise the traditional decoding procedure by proposing a serial of carefully designed preprocessing. Attribute Values: left: It sets the text left-align. right: It sets the text right-align. center: It sets the text center-align. justify: It stretch the text of paragraph to set the width of all lines equal

### Image stitching - Wikipedi

1. If you build the editor from source, then the process of installing a new plugin boils down to these three steps: Installing the plugin package. Adding it to your editor's configuration. Building your project. For example, if you wish to install the text alignment feature: npm install --save-dev @ckeditor/ckeditor5-alignment
2. The procedure is the following: - after all the photos are aligned, select poorly aligned photos on Workspace pane and from the context menu select Reset Photo Alignment command; - place markers on photos (use guided approach described in PhotoScan User Manual) - both aligned and bad photos; - select all bad photos on Workspace pane and.
3. It takes specialist equipment and a lot of skill to perform a full collimation of binoculars, so what we'll do here is what's known as a 'conditional alignment', where we align the optical tubes with each other in order to get a single image, but we won't attempt to align them with the hinge as well
4. Hide the alignment track. Save image: Saves the data visible in the IGV panel to an image file. Specify the image file format by setting the filename extension in the file save dialog to .png, .jpeg, .jpg, or .svg. Export Alignments: Export alignments in view to a SAM file. Remove Track: Remove track permanentl
5. ishes, pressure on the trigger is resumed until the shot breaks, or after the slack in the trigger is taken up, initial pressure is applied and the shot released by a single swift movement of the trigger finger when there is a decrease in the

### Polar Alignment Troubleshooting - SharpCap - Lunar

Technique & Projection errors<br />c. Projection errors<br />PID alignment artifact<br />If the PID is misaligned and the x-ray is not centered over the film, a partial image is seen on the resultant radiograph, this partial image is called cone-cut.<br />It appear as a clear area with curved outline.<br /> 29. 30. Asuan - Egy.<br /> 31. II PixScan™ technology allows you to cut precisely around any printed image or position cut lines in a specific location on your material using a camera or scanner. PixScan™ is perfect for digitizing a stamp collection or turning a hand-drawn sketch into a cut job. Place your material onto the PixScan™ mat

### Alignment - Glowforg

You can find the full list of alignment requirements in the specification. Our original shader with just three mat4 fields already met the alignment requirements. As each mat4 is 4 x 4 x 4 = 64 bytes in size, model has an offset of 0 , view has an offset of 64 and proj has an offset of 128 Measurement Range:The level of acceleration supported by the sensor's output signal specifications, typically specified in ±g. This is the greatest amount of acceleration the part can measure and accurately represent as an output. For example, the output of a ±3g accelerometer is linear with acceleration up to ±3g. If it is accelerated at 4g, the

### Images : Alignment - HTML Tutoria

1. Supported Image Formats¶ Image file formats are standardized means to organize and store digital images. An image file format may store data in an uncompressed format, a compressed format (which may be lossless or lossy), or a vector format. . Each user agent supports different image formats. Here is the list of common image formats
2. I have been working in R Markdown, which supports LaTeX, including in display mode. I had the following snippet for displaying aligned equations. \begin {align} a_1 &= \beta_0 \\ b_1 &= \beta_1 \\ c_1 &= \beta_2 \\ d_1 &= \beta_3 \end {align}. This worked great for me when I chose to output as HTML. I believe this uses MathJax
3. Alignment. How does SnapGene calculate conservation scores for a protein multiple alignment? Printing and Exporting. How do I export my Map or Sequence as a vector-based graphic? Why do I see missing or garbled text after printing to a PDF file? Sequence Traces. What base caller does SnapGene use for sequence traces? Histor

Astrometric image stiching is possible with the internal astrometric solver. The reference of each pixel is the astronomical position. So stacking is not done against a reference image but against an position array set by the first image. You have to set the in tab alignment the settings for Image stiching (method) correctly The number of bases in reads that align perfectly, as determined by alignment to PhiX of reads derived from a spiked in PhiX control sample. If no PhiX control sample is run in the lane, this chart is not available: Yield <=3 errors: The number of bases in reads that align with three errors or less, as determined by a spiked in PhiX control sample Creates an image of the front panel of the VI you specify in VI and appends it to a report. Wire data to the VI input to determine the polymorphic instance to use or manually select the instance. The VI also includes an instance whose connector pane is compatible with versions of the VI in LabVIEW 6.1 and earlier. Details Round images indicates the full light path is passing thru both prisms and out thru the eyepiece. Cat's eye shaped images indicates the prisms are tilted out of alignment and you are losing light that is not passing through the prisms to the eyepiece Click Device Services tab, and then click Align Cartridges. Select Print alignment page, and then click Next. Wait for the alignment page to fully eject from the printer. Lift the scanner lid, and place the alignment page print-side down on the scanner glass, aligned to the engraved guides near the glass The two-star alignment routine, with calibration stars, is run only once after aligning the mount with the polar alignment scope. Image 8 - The author tested the mount with a 6.0-inch refractor powered with a 12-volt battery pack. The hand controller, the power cord, and the optional Celestron GPS unit are plugged into the side of the mount